#include <mymath.h>
#include <mystring.h>
#include <stdio.h>

int main()
{
  int x = 10,y = 5;
  int n1 = add(x,y),n2 = sub(x,y),n3 = mul(x,y),n4 = div(x,y);
  printf("x + y = %d\n",n1);
  printf("x - y = %d\n",n2);
  printf("x * y = %d\n",n3);
  printf("x / y = %d\n",n4);
  print(n1,n2,n3,n4);
  return 0;
}
